Ouster (OUST) CRO sells 8,723 shares in tax-related RSU settlement

Rhea-AI Filing Summary

Ouster, Inc. Chief Revenue Officer Cyrille Jacquemet reported an open-market sale of 8,723 shares of common stock. The shares were sold primarily to cover withholding taxes triggered by the vesting and settlement of restricted stock units, according to the filing footnotes.

Shares were sold at a weighted average price of about $38.82 per share, across multiple trades within a narrow price range. After these transactions, Jacquemet directly holds 114,434.5 Ouster common shares, indicating this was a relatively small, tax-related sale compared with his remaining stake.

Insights

Equity compensation and insider-transactions analyst

Small tax-driven sale tied to RSU vesting; routine, not thesis-changing.

Ouster’s Chief Revenue Officer, Cyrille Jacquemet, sold 8,723 common shares at a weighted average price of about $38.82 per share. Footnotes state the sale was done to cover withholding taxes from vested and settled restricted stock units, a common equity-compensation event.

Following the sale, Jacquemet still holds 114,434.5 shares directly, so the transaction represents a modest portion of his position. Because the activity is tax-related rather than a discretionary liquidation, and the size is relatively small, it carries limited informational value for investors and does not materially alter the investment picture.

Insider Trade Summary

Net Seller: 8,723 shares ($338,653)

Net Sell 1 txn

Insider Jacquemet Cyrille

Role Chief Revenue Officer

Sold 8,723 shs ($339K)

Type	Security	Shares	Price	Value
Sale	Common Stock	8,723	$38.823	$339K

Holdings After Transaction: Common Stock — 114,434.5 shares (Direct, null)

Footnotes (1)

1. Reflects shares sold to cover withholding taxes incurred upon the vesting and settlement of restricted stock units. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.82 to $39.54. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Key Figures

Shares sold: 8,723 shares Weighted average sale price: $38.823 per share Shares held after transaction: 114,434.5 shares

3 metrics

Shares sold 8,723 shares Open-market sale on 2026-06-12

Weighted average sale price $38.823 per share Common stock sale range $38.82–$39.54

Shares held after transaction 114,434.5 shares Direct ownership following sale

Key Terms

restricted stock units, weighted average price, withholding taxes

3 terms

restricted stock units financial

"withholding taxes incurred upon the vesting and settlement of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

withholding taxes financial

"shares sold to cover withholding taxes incurred upon the vesting"

Withholding taxes are amounts a payer or government takes out of payments — such as wages, interest, or dividends — before the recipient gets the money, functioning like a cashier keeping part of a bill to pay taxes on your behalf. For investors this matters because it reduces the cash they actually receive, affects net returns and yield calculations, and may require additional paperwork or treaty claims to recover or offset the withheld amount against final tax bills.

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Jacquemet Cyrille

(Last) (First) (Middle)

350 TREAT AVENUE

(Street)

SAN FRANCISCO CALIFORNIA 94110

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Ouster, Inc. [ OUST ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Revenue Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/12/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/12/2026		S		8,723(1)	D	$38.823(2)	114,434.5	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Reflects shares sold to cover withholding taxes incurred upon the vesting and settlement of restricted stock units.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.82 to $39.54. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

	/s/ Megan Chung, as Attorney-in-Fact for Cyrille Jacquemet	06/16/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Ouster (OUST) disclose for Cyrille Jacquemet?

Ouster reported that Chief Revenue Officer Cyrille Jacquemet sold 8,723 shares of common stock. The sale was primarily to cover withholding taxes related to vested restricted stock units, making it a routine compensation-driven transaction rather than a large discretionary stock sale.

At what price did Cyrille Jacquemet sell Ouster (OUST) shares?

The filing shows a weighted average sale price of about $38.82 per share. Footnotes note that multiple trades occurred within a price range from $38.82 to $39.54, with detailed trade-by-trade data available upon request from the company or regulators.

How many Ouster (OUST) shares does Cyrille Jacquemet hold after this sale?

After selling 8,723 shares, Cyrille Jacquemet directly holds 114,434.5 Ouster common shares. This indicates the transaction covered tax obligations from equity compensation while leaving him with a substantial continuing ownership stake in the company’s stock.

Why did Ouster’s Chief Revenue Officer sell shares according to the Form 4?

Footnotes state the shares were sold to cover withholding taxes due when Jacquemet’s restricted stock units vested and settled. Such tax-driven sales are common in equity compensation programs and do not necessarily signal a change in the insider’s view of the company.

Was Cyrille Jacquemet’s Ouster (OUST) share sale a routine tax-withholding event?

Yes. The Form 4 explicitly explains that the shares were sold to satisfy withholding taxes tied to restricted stock unit vesting. This makes the sale a routine administrative transaction linked to compensation rather than a large discretionary reduction of his ownership position.